Diffusion-SDF: Conditional Generative Modeling of Signed Distance Functions
On the map: Diffusion models → 3D, point cloud and scene generation
Abstract (arXiv)
Probabilistic diffusion models have achieved state-of-the-art results for image synthesis, inpainting, and text-to-image tasks. However, they are still in the early stages of generating complex 3D shapes. This work proposes Diffusion-SDF, a generative model for shape completion, single-view reconstruction, and reconstruction of real-scanned point clouds. We use neural signed distance functions (SDFs) as our 3D representation to parameterize the geometry of various signals (e.g., point clouds, 2D images) through neural networks. Neural SDFs are implicit functions and diffusing them amounts to learning the reversal of their neural network weights, which we solve using a custom modulation module. Extensive experiments show that our method is capable of both realistic unconditional generation and conditional generation from partial inputs. This work expands the domain of diffusion models from learning 2D, explicit representations, to 3D, implicit representations.
Key facts. Cited by 133 papers in the map (data through 7 Oct 2026). Placed in 3D, point cloud and scene generation, one of 14 directions in Diffusion models. Builds on 55 of its 70 references that are in the map. First posted on arXiv 24 Nov 2022.
Builds on
55 of 70 references.
Closest ancestors · 4
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- 2022Novel View Synthesis with Diffusion Models6 Oct
- 2022DreamFusion: Text-to-3D using 2D Diffusion29 Sep
- 2021Diffusion Probabilistic Models for 3D Point Cloud Generation2 Mar
Other references · 51
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- 2015Deep Unsupervised Learning using Nonequilibrium Thermodynamicscited by 7,005
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- 2016PointNet: Deep Learning on Point Sets for 3D Classification and Segmentationcited by 5,223
- 2019Generative Modeling by Estimating Gradients of the Data Distributioncited by 4,067
- 2021Improved Denoising Diffusion Probabilistic Modelscited by 3,736
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- 2019DeepSDF: Learning Continuous Signed Distance Functions for Shape Representationcited by 2,682
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- 2020Implicit Neural Representations with Periodic Activation Functionscited by 2,214
- 2018Occupancy Networks: Learning 3D Reconstruction in Function Spacecited by 2,037
- 2018Spectral Normalization for Generative Adversarial Networkscited by 1,618
- 2016A Point Set Generation Network for 3D Object Reconstruction from a Single Imagecited by 972
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- 2020Convolutional Occupancy Networkscited by 760
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- 2022A 3D Generative Model for Structure-Based Drug Designcited by 148
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- 2021Modulated Periodic Activations for Generalizable Local Functional Representationscited by 140
- 2022Neural Wavelet-domain Diffusion for 3D Shape Generationcited by 132
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- 2020Cascaded Refinement Network for Point Cloud Completioncited by 112
- 2022ShapeFormer: Transformer-based Shape Completion via Sparse Representationcited by 106
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- 2020Multimodal Shape Completion via Conditional Generative Adversarial Networkscited by 61
- 2020Adversarial Generation of Continuous Implicit Shape Representationscited by 46
- 2022GenSDF: Two-Stage Learning of Generalizable Signed Distance Functionscited by 30
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